Castellani appeared in three games with the A's this season, firing 2 2/3 scoreless innings with a 0.75 WHIP and 1/0 K/BB ratio. He shouldn't have a difficult time finding another team willing to take a shot on him on a minor league deal.

With Jed Lowrie and Kevin Smith returning from the injured list on Friday, the A's needed to free up some roster space and it looks like Castellani drew the short straw. The 26-year-old hurler did a nice job during his time with the big league club, firing 2 2/3 scoreless innings with a 0.75 WHIP and 1/0 K/BB ratio. He should get another opportunity in Oakland in relatively short order.

Castellani had been working as a closer at Las Vegas. He'll give the A's a fresh bullpen arm.

It's unclear whether or not the deal will include an invitation to big league camp. The 25-year-old hurler spent the majority of the 2021 campaign at Triple-A Albuquerque where he posted a troublesome 6.25 ERA, 1.70 WHIP and 86/71 K/BB ratio over 95 innings. He'll have to cut back drastically on the walks to have any chance of success with the A's.